JPS63183452U - - Google Patents

Info

Publication number
JPS63183452U
JPS63183452U JP7477887U JP7477887U JPS63183452U JP S63183452 U JPS63183452 U JP S63183452U JP 7477887 U JP7477887 U JP 7477887U JP 7477887 U JP7477887 U JP 7477887U JP S63183452 U JPS63183452 U JP S63183452U
Authority
JP
Japan
Prior art keywords
piston
toppland
ring
pressure
cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7477887U
Other languages
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP7477887U priority Critical patent/JPS63183452U/ja
Publication of JPS63183452U publication Critical patent/JPS63183452U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Pistons, Piston Rings, And Cylinders (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例を示す部分断面図、
第２図は本考案の他の実施例を示す部分断面図、
第３図は従来例を示す断面図、第４ａ図、第４ｂ
図は従来例の問題点の説明図。 １…ピストン、４…第１圧力リング、７…シリ
ンダ、１０…貫通孔。 FIG. 1 is a partial sectional view showing an embodiment of the present invention;
FIG. 2 is a partial sectional view showing another embodiment of the present invention;
Figure 3 is a sectional view showing a conventional example, Figures 4a and 4b.
The figure is an explanatory diagram of the problems of the conventional example. DESCRIPTION OF SYMBOLS 1...Piston, 4...First pressure ring, 7...Cylinder, 10...Through hole.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ピストンのトツプランド部の少なくとも外周部
を低熱膨張材料によつて形成して、トツプランド
部とシリンダとの間隙を小さく設定するとともに
、第一圧力リングのリング溝の燃焼室に近い上側
面の第一圧力リングと重なり合う部分へ、ピスト
ン冠面から複数の貫通孔を設けたことを特徴とす
る内燃機関のピストン。 At least the outer periphery of the toppland portion of the piston is formed of a low thermal expansion material to set a small gap between the toppland portion and the cylinder, and the first pressure on the upper surface of the ring groove of the first pressure ring near the combustion chamber is reduced. A piston for an internal combustion engine, characterized in that a plurality of through holes are provided from the crown surface of the piston to a portion overlapping with a ring.
JP7477887U 1987-05-19 1987-05-19 Pending JPS63183452U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7477887U JPS63183452U (en) 1987-05-19 1987-05-19

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7477887U JPS63183452U (en) 1987-05-19 1987-05-19

Publications (1)

Publication Number Publication Date
JPS63183452U true JPS63183452U (en) 1988-11-25

Family

ID=30920312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7477887U Pending JPS63183452U (en) 1987-05-19 1987-05-19

Country Status (1)

Country Link
JP (1) JPS63183452U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030021310A (en) * 2001-09-05 2003-03-15 현대자동차주식회사 Piston
JP2020159287A (en) * 2019-03-27 2020-10-01 本田技研工業株式会社 Piston of internal combustion engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030021310A (en) * 2001-09-05 2003-03-15 현대자동차주식회사 Piston
JP2020159287A (en) * 2019-03-27 2020-10-01 本田技研工業株式会社 Piston of internal combustion engine

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